Phase-field simulation of void migration in a temperature gradient

被引：74

作者：

Hu, S. Y. ^{[1
]}

Henager, C. H., Jr. ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

ACTA MATERIALIA | 2010年 / 58卷 / 09期

关键词：

Void migration; Surface and bulk diffusion; Vacancy; Temperature gradient; Phase-field model; RAY COMPUTER-TOMOGRAPHY; FISSION-GAS BUBBLES; SELF-ORGANIZATION; LATTICE FORMATION; UO2; FUEL; IRRADIATION; METALS; EVOLUTION; GROWTH; MOLYBDENUM;

D O I：

10.1016/j.actamat.2010.01.043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A phase-field model simulating vacancy diffusion in a solid with a strong vacancy mobility inhomogeneity is presented. The model is used to study void migration via bulk and surface diffusion in a temperature gradient. The simulations demonstrate that voids migrate up the temperature gradient, and the migration velocity varies inversely with the void size, in agreement with theory. It is also shown that the current model has the capability to investigate the effects of surface diffusion, temperature gradient and vacancy concentration on the void migration velocity. An interesting potential application of the model is to study the kinetics of void migration and the formation of a central hole in nuclear fuels. (C) 2010 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：3230 / 3237

页数：8

共 50 条

[21] Investigation on temperature-gradient-driven effects in unconventional sintering via non-isothermal phase-field simulation
Yang, Yangyiwei
Oyedeji, Timileyin David
Kuehn, Patrick
Xu, Bai-Xiang
SCRIPTA MATERIALIA, 2020, 186 : 152 - 157
[22] Effect of Temperature Gradient on the Grain Size Homogeneity of SEED Produced Semi-Solid Slurries by Phase-Field Simulation
Qu, Wenying
Luo, Min
Guo, Zhipeng
Hu, Xiaogang
Zhang, Ang
Zhang, Fan
Li, Daquan
Zhang, Yongzhong
MATERIALS, 2019, 12 (20)
[23] Phase-field modeling of void lattice formation under irradiation
Hu, Shenyang
Henager, Charles H., Jr.
JOURNAL OF NUCLEAR MATERIALS, 2009, 394 (2-3) : 155 - 159
[24] Phase-field modeling of void formation and growth under irradiation
Semenov, A. A.
Woo, C. H.
ACTA MATERIALIA, 2012, 60 (17) : 6112 - 6119
[25] Interfacial energy in phase-field emulation of void nucleation and growth
Semenov, A. A.
Woo, C. H.
JOURNAL OF NUCLEAR MATERIALS, 2011, 411 (1-3) : 144 - 149
[26] A phase-field modeling of void swelling in the Austenitic stainless steel
Chang, Kunok
Lee, Gyeong-Geun
Kwon, Junhyun
RADIATION EFFECTS AND DEFECTS IN SOLIDS, 2016, 171 (3-4): : 242 - 251
[27] Modeling void development in irradiated metals in the phase-field framework
Semenov, A. A.
Woo, C. H.
JOURNAL OF NUCLEAR MATERIALS, 2014, 454 (1-3) : 60 - 68
[28] An accelerated algorithm on the phase-field simulation
School of Electronics and Information, Northwestern Polytechnical University, No. 127, West Youyi Road, Xi'an, China
不详
不详
ICIC Express Lett., 1 (203-209):
[29] Phase-Field Simulation of Dendritic Growth
Zhang Yu-tuo
Li Dong-hui
Wang Cheng-zhi
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2010, 17 : 1 - 3
[30] Phase-field simulation of grain growth
Suwa, Y., 1600, Nippon Steel Corp.

← 1 2 3 4 5 →